A little advice.
When a little catgirl knocks on your door and she hands you a pair of cat ears and a maid outfit and tells you the world is in peril...
PUT IT ON!
EDIT: OMG A DAILY DEVIATION
I just need to sit down for a bit then I'll be back, hopefully with something poignant to say other than just thank you all!
EDIT 2: Now that I've managed to calm down a bit.
This animation took two weeks of work and had as much effort put into it as any short film I have created. I used GIMP 2 which was actually not recommended to me as the premium software to tackle a project like this. But it was free and I wanted to do pixel art. I have more advanced programs like Adobe and Corel Paint and IMO they're not really suited for doing simple pixel art. I studied animation in college and have not done an animation project in ages and emoticons really speak to me as a medium. Simple. Iconic. Often funny short gags. The only thing that prevented me from getting into it earlier was not finding software I liked. GIMP 2 has the simple interface I was looking for in pixel art software that also does animation. On top of that it has a simple scripting language that allows you to manipulate the speed of the frames and alter them on individual frames, that's pretty handy. I have to say any project bigger than this GIMP 2 is not suited. I wish it would do things like let you save and import animations into the frames of another project. But for short little things it's perfect for me.
I did use Corel to create the paint effects for some scrolling backgrounds and gradual paint fills. I don't like how GIMP 2 all gradual fills blend the edges and it doesn't have gradual in the paint function. Also exporting files back and forth is a bit tricky.